How to Stop Drafts From Ceiling Heating Vents?

Submitted By
2 expert, 0 community

What can I do to prevent cold air from trickling out of the ceiling vents during cold months? When the heat isn't on, cold air infiltrates the ductwork and cascades into the room. The house is three years old and is heated by a heat pump. The duct work does not have any leaks that I know of.  Is there any type of butterfly baffle or damper that could be installed at the entry point to the room and that would close when air is not flowing?

Post new answer

Type the characters you see in this picture. (verify using audio)
Type the characters you see in the picture above; if you can't read them, submit the form and a new image will be generated. Not case sensitive.


There should be dampers on the ducts that connect to the grills to regulate and balance. But that can be difficult to access if they are located in an unfloored attic.

I would suggest that you first check up close to the grills themselves as most have a built in damper control that can shut them off at the grill location.

If you do not have these you can purchase magnetic sheets used for signs and cut them to the size of each grill.  They then would simply stick to the face of the grill stopping the air flow. Then in the spring you simply pull them off and store them in a drawer until the next winter.

0 users found this helpful
You voted
Was this answer helpful?